Carbonated soft drink finish modification

ABSTRACT

An apparatus and method are provided for a finish configured to define an opening to an interior of a container and to substantially reduce foaming of contents when the container is opened. The finish comprises a cylindrical body having a peripheral portion with a first edge and a second edge disposed at opposite ends. The first edge defines a first opening and is configured to receive a container cap. The second edge defines a second opening and is configured to receive a neck of the container. The first and second openings are in fluid communication. Threads on an exterior of the peripheral portion are configured to rotatably engage with threads of the container cap. At least one notch is disposed on the first edge and comprises a cross-sectional shape suitably formed to reduce foaming of the contents during loosening of the container cap.

PRIORITY

This application is a continuation-in-part of, and claims the benefitof, U.S. patent application, entitled “Carbonated Soft Drink FinishModification,” filed on Nov. 11, 2015, and having application Ser. No.14/938,596, which claims the benefit of, and priority to, U.S.Provisional application, entitled “Carbonated Soft Drink FinishModification,” filed on Nov. 13, 2014 and having application Ser. No.62/079,431, the entirety of each of said applications being incorporatedherein by reference.

FIELD

The field of the present invention generally relates to plasticcontainers. More particularly, the field of the invention relates to anapparatus and method for reducing foaming that occurs with carbonatedsoft drink containers.

BACKGROUND

Plastic containers have been used as a replacement for glass or metalcontainers in the packaging of beverages for several decades. The mostcommon plastic used in making beverage containers today is polyethyleneterephthalate (PET). Containers made of PET are transparent,thin-walled, and have the ability to maintain their shape bywithstanding forces exerted on the walls of the container by theircontents. PET resins are also reasonably priced and easy to process. PETbottles generally are made by a process that includes blow-molding ofplastic pre-forms that have been made by injection molding of the PETresin.

A drawback to plastic containers is that those containing carbonatedcontents may allow foaming of the contents onto a consumer uponinitially opening the container. In some cases, the foaming may be greatenough to spill the contents of the container onto the clothing of aconsumer, or onto nearby furniture. Another drawback to plasticcontainers is that carbon-dioxide content within the containers must belimited so as to accommodate the foaming tendency of carbonated liquids.Limiting the carbon-dioxide content effectively leads to a decreasedlongevity of the flavor profile of the carbonated contents. What isneeded, therefore, is an apparatus and method for decreasing the foamingtendency of bottled carbonated contents, such that the carbon-dioxidecontent may be increased so as to increase the longevity of the flavorprofile of the contents.

SUMMARY

An apparatus and method are provided for a finish configured to definean opening to an interior of a container and to substantially reducefoaming of contents when the container is opened. The finish comprises acylindrical body comprising a peripheral portion with a first edge and asecond edge disposed at opposite ends. The first edge defines a firstopening and is configured to receive a container cap. Generally, thefirst edge is configured to receive a seal of the container cap. Thesecond edge defines a second opening and is configured to receive a neckof the container. The first and second openings are in fluidcommunication. One or more threads on an exterior of the peripheralportion are configured to rotatably engage with one or more threads ofthe container cap. At least one notch is disposed on the first edge,peripheral to the first opening, and comprises a cross-sectional shapesuitably formed to substantially reduce foaming of the contents. In oneembodiment, the first edge comprises two notches, disposed on oppositesides of the first opening, and the cross-sectional shape of each of thenotches comprises a half-circle configured to substantially reducefoaming of the contents when the container cap is loosened with respectto the finish.

In an exemplary embodiment, a finish configured to define an opening toan interior of a container and to substantially reduce foaming ofcontents when the container is opened comprises a cylindrical bodycomprising a peripheral portion with a first edge and a second edgedisposed at opposite ends, the first edge defining an opening andconfigured to receive a container cap, the second edge configured toreceive a neck of the container, wherein the opening is in fluidcommunication with the interior; one or more threads on an exterior ofthe peripheral portion, the threads configured to rotatably engage withone or more threads of the container cap; and at least one notchdisposed on the first edge and comprising a cross-sectional shapesuitably formed to substantially reduce foaming of the contents.

In another exemplary embodiment, the first edge is configured to couplewith a seal of the container cap, such that pressurized contents aremaintained within the interior. In another exemplary embodiment, theseal comprises a plug seal disposed within an interior of the containercap and configured to tightly engage the first edge so as to maintainthe pressurized contents within the interior. In another exemplaryembodiment, the seal comprises a liner seal disposed between thecontainer cap and the first edge so as maintain the pressurized contentswithin the interior.

In another exemplary embodiment, the at least one notch comprises twonotches disposed on opposite sides of the finish. In another exemplaryembodiment, the cross-sectional shape is any one of a half-circle, asquare, and a triangle. In another exemplary embodiment, thecross-sectional shape is configured to produce an audible sound whenpressurized gases exit through the at least one notch during looseningof the container cap.

In an exemplary embodiment, a container configured to substantiallyreduce foaming of contents when the container is opened comprises a baseextending upward to a sidewall of the container; a shoulder connectedbetween the sidewall and a bell, a diameter of the bell decreasing asthe bell extends upward to a neck of the container; a finish connectedto the neck and configured to receive a container cap, the finishdefining an opening to an interior of the container; and at least onenotch disposed at the top of the finish and configured to substantiallyreduce foaming of contents during opening of the container.

In another exemplary embodiment, the top of the finish is furtherconfigured to receive a seal of the container cap. In another exemplaryembodiment, the seal comprises a plug seal disposed within an interiorof the container cap and configured to tightly engage the finish so asto maintain the pressurized contents within the interior. In anotherexemplary embodiment, the seal comprises a liner seal disposed betweenthe container cap and the finish so as maintain the pressurized contentswithin the interior.

In another exemplary embodiment, the top of the finish comprises twonotches disposed on opposite sides of the opening to the interior of thecontainer. In another exemplary embodiment, the at least one notchcomprises a cross-sectional shape suitably formed to substantiallyreduce foaming of contents. In another exemplary embodiment, thecross-sectional shape is any one of a half-circle, a square, and atriangle. In another exemplary embodiment, the cross-sectional shape isconfigured so as to produce an audible sound when the container cap istwisted.

In an exemplary embodiment, a method for a container to substantiallyreduce foaming of contents when the container is opened comprisesextending a base upward to a sidewall of the container; connecting ashoulder between the sidewall and a bell; extending the bell from theshoulder to a neck of the container, such that a diameter of the belldecreases as the bell extends to the neck; connecting a finish to theneck, such that the finish defines an opening to an interior of thecontainer; configuring the finish to receive a container cap; andforming at least one notch at the top of the finish so as tosubstantially reduce foaming of contents during opening of thecontainer.

In another exemplary embodiment, configuring the finish furthercomprises forming a cylindrical body comprising a peripheral portiondisposed between a first end and a second end, the first end configuredto receive the container cap and the second end configured to couplewith the neck. In another exemplary embodiment, configuring the finishfurther comprises forming one or more threads on an exterior of theperipheral portion, the threads configured to rotatably engage with oneor more threads of the container cap. In another exemplary embodiment,forming the at least one notch comprises configuring a cross-sectionalshape of the at least one notch comprising any one of a square, ahalf-circle, and a triangle. In another exemplary embodiment, formingthe at least one notch comprises configuring a cross-sectional shape ofthe at least one notch to produce an audible sound when pressurizedgases exit through the at least one notch during loosening of thecontainer cap.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings refer to embodiments of the present disclosure in which:

FIG. 1 illustrates a side plan view of an exemplary embodiment of acontainer suitable for storing pressurized carbonated contents,according to the present disclosure;

FIG. 2 illustrates an upper perspective view of an exemplary embodimentof a Carbonated Soft Drink (CSD) finish, according to the presentdisclosure;

FIG. 3 illustrates a cross-sectional view of an exemplary embodiment ofa CSD finish with a container cap installed, according to the presentdisclosure;

FIG. 4A illustrates a cross-sectional view of an embodiment of a CSDcontainer cap in accordance with the present disclosure;

FIG. 4B illustrates a cross-sectional view of an embodiment of a HotFill container cap, according to the present disclosure;

FIG. 5 is a table illustrating observational data acquired duringexperimental testing of various embodiments of the present disclosure;

FIG. 6A illustrates an upper perspective view of an exemplary embodimentof container cap comprising a liner seal coupled with a container, inaccordance with the present disclosure;

FIG. 6B illustrates an upper perspective view of the container and linerseal illustrated in FIG. 6A in absence of the container cap, accordingto the present disclosure; and

FIG. 6C illustrates an exploded upper perspective view of the containercap, liner seal, and container illustrated in FIG. 6A in accordance withthe present embodiment.

While the present disclosure is subject to various modifications andalternative forms, specific embodiments thereof have been shown by wayof example in the drawings and will herein be described in detail. Theinvention should be understood to not be limited to the particular formsdisclosed, but on the contrary, the intention is to cover allmodifications, equivalents, and alternatives falling within the spiritand scope of the present disclosure.

DETAILED DESCRIPTION

In the following description, numerous specific details are set forth inorder to provide a thorough understanding of the present disclosure. Itwill be apparent, however, to one of ordinary skill in the art that theinvention disclosed herein may be practiced without these specificdetails. In other instances, specific numeric references such as “firstnotch,” may be made. However, the specific numeric reference should notbe interpreted as a literal sequential order but rather interpreted thatthe “first notch” is different than a “second notch.” Thus, the specificdetails set forth are merely exemplary. The specific details may bevaried from and still be contemplated to be within the spirit and scopeof the present disclosure. The term “coupled” is defined as meaningconnected either directly to the component or indirectly to thecomponent through another component. Further, as used herein, the terms“about,” “approximately,” or “substantially” for any numerical values orranges indicate a suitable dimensional tolerance that allows the part orcollection of components to function for its intended purpose asdescribed herein.

In general, the present disclosure describes an apparatus and a methodfor a finish configured to define an opening to an interior of acontainer and to substantially reduce foaming of contents when thecontainer is opened. The finish comprises a cylindrical body including aperipheral portion with a first edge and a second edge disposed atopposite ends. The first edge defines an opening and is configured toreceive a container cap. Generally, the first edge is configured toreceive a seal of the container cap. The second edge is configured toreceive a neck of the container such that the opening is in fluidcommunication with an interior of the container. One or more threads onan exterior of the peripheral portion are configured to rotatably engagewith one or more threads of the container cap. At least one notch isdisposed at the first edge, peripheral to the first opening, andcomprises a cross-sectional shape suitably formed to substantiallyreduce foaming of the contents. In one embodiment, the first edgecomprises two notches, disposed on opposite sides of the finish, whereinthe cross-sectional shape of each of the notches comprises a half-circleconfigured to substantially reduce foaming of the contents.

FIG. 1 illustrates a lower perspective view of an exemplary embodimentof a container 100 in accordance with the present disclosure. Thecontainer 100 comprises a base 104 that extends up to a grip portion108. Preferably, the base 104 is of the petaloid variety, although otherconfigurations of the base may be incorporated into the container 100,without limitation. The grip portion 108 comprises a generally smooth,cylindrical portion of the container 100 suitable for affixing a label,as well as providing a location for grasping the container. In someembodiments, the grip portion 108 may comprise one or more sidewall ribsthat generally may vary in depth, and may swirl or angulate around thegrip portion 108. Additional configurations of the grip portion 108 aredisclosed in U.S. patent application, entitled “Plastic Container withStrapped Base,” filed on Jan. 16, 2014, having application Ser. No.14/157,400, the entirety of which application is incorporated byreference herein.

In the illustrated embodiment, the grip portion 108 transitions into ashoulder 124, which connects to a bell 128. Although the bell 128illustrated in FIG. 1 is smooth and generally unornamented, in otherembodiments the bell may include design features, such as, by way ofnon-limiting example, a plurality of scallops. The bell 128 connects toa neck 136, which connects to a Carbonated Soft Drink (CSD) finish 140.As shown in FIG. 1, the bell 128 comprises a diameter that generallydecreases as the bell 128 extends upward from the shoulder 124 to theneck 136 and the CSD finish 140. The CSD finish 140 may be adapted toreceive a closure to seal contents in the container 100, such as, by wayof non-limiting example, a container cap 164 or a bottle cap. The CSDfinish 140 generally defines an opening that leads to an interior of thecontainer 100 for containing a beverage, or other contents.

FIG. 2 illustrates an upper perspective view of an exemplary embodimentof the CSD finish 140 that is configured to substantially reduce foamingof contents, particularly carbonated contents, during opening of thecontainer 100. The CSD finish 140 comprises a cylindrical body 148 thatincludes a peripheral portion with a first edge 152 and a second edge156 disposed at opposite ends. The first edge 152 defines an opening 160and is configured to receive a plug seal 168 within the container cap164, as disclosed herein. The second edge 156 is configured to receivethe neck 136 of the container 100, as shown in FIGS. 1 and 2, such thatthe opening 160 is in fluid communication with the interior of thecontainer 100 once the CSD finish 140 is installed thereon.

An exterior of the cylindrical body 148 comprises one or more threads172 that are configured to rotatably engage with one or more threads 176of the container cap 164. A plurality of gaps 174 are disposed in thethreads and positioned uniformly around the perimeter of the cylindricalbody 148. Preferably, the gaps 174 of adjacent threads 172 arevertically aligned so as to form channels 178 extending longitudinallyalong the CSD finish 140. The channels 178 advantageously operate torelieve pressure within the container 100 when the container cap 164 isloosened. As will be appreciated, the channels 178 provide a directroute for gases escaping the interior of the container 100, rather thanthe gases being forced to travel around the finish between adjacentthreads 172.

An engagement of the threads 172 of the CSD finish 140 with the threads176 of the container cap 164 is best shown in FIG. 3. It should be bornein mind, however, that the bottle cap need not be limited to thecontainer cap 164 and thus bottle caps other than the cap 164 may becoupled with the CSD finish 140, without limitation. As such, FIG. 4Aillustrates a cross-sectional view of an exemplary embodiment of a CSDcontainer cap 180 that may be used to seal pressurized contents withinthe container 100. The CSD container cap 180 comprises a multiplicity ofthreads 176 suitable for rotatably engaging with the threads 172 of theCSD finish 140. Gaps 174 disposed in the threads 176 serve to ventpressurized gases escaping the container 100 when the cap 180 isloosened. During tightening of the container cap 180, a plug seal 188within the cap enters into the opening 160 and is placed into a pressedrelationship with the first edge 152. Further, FIG. 4B illustrates across-sectional view of an exemplary embodiment of a Hot Fill containercap 184. The Hot Fill container cap 184 is substantially similar to theCSD container cap 180, with the exception that the container cap 184comprises a plug seal 192 which is taller than the plug seal 188. Thus,during tightening of the Hot Fill container cap 184 onto the CSD finish140, the plug seal 192 enters more deeply into the opening 160 than theplug seal 188. It will be appreciated that the first edge 152 isconfigured to tightly receive the plug seals 188, 192 into the opening160 so as to retain the contents within the container 100 withoutleaking.

In the embodiment illustrated in FIG. 2, the first edge 152 comprisestwo notches 196 disposed on opposite sides of the opening 160. Althoughthe notches 196 are aligned with two of the channels 178 in theembodiment illustrated in FIG. 2, in other embodiments the notches 196may be positioned anywhere around the opening 160, as desired. Each ofthe two notches 196 comprises a cross-sectional shape suitably formed soas to substantially reduce foaming of the contents when the containercap 164 is loosened with respect to the CSD finish 140. In theillustrated embodiment, the cross-sectional shape of the notches 196 isa half-circle. In other embodiments, however, one or both of the notches196 may comprise cross-sectional shapes other than a half-circle, suchas, by way of non-limiting example, various segments of circles,ellipsoids, ovals, rectangles, squares, triangles, V-shaped wedges, andany other cross-sectional shape that is found to advantageously reducefoaming of contents when the container cap 164 is removed from thecontainer 100.

In some embodiments, the cross-sectional shape of the notches 196 may bespecifically designed so as to produce an audible tone or sound aspressurized gases exit the container 100 through the notches 196 whenthe container cap 164 is loosened. Moreover, it should be understoodthat although the CSD finish 140 is described herein specifically inconnection with the container cap 164, the CSD finish 140 is not limitedto being coupled solely with the container cap 164, but rather anycontainer cap that is suitably configured to engage with the CSD finish140, such that contents are sealed within the container 100, includingbut not limited to the CSD container cap 180 and the Hot Fill containercap 184, may be coupled with the CSD finish 140 without detracting fromthe spirit and scope of the present disclosure.

When the container cap 164 is tightly engaged with the CSD finish 140,as shown in FIG. 3, the plug seal 168 and the first edge 152 cooperateso as to prevent pressurized contents from leaking out of the container.When the container cap 164 is loosened, generally by twisting so as toloosen the engagement between the threads 172 and 176, the seal 188 iswithdrawn from the first edge 152. In absence of the two notches 196,withdrawing the plug seal 168 from the first edge 152 causes an abruptdrop in pressure within the container 100 to an ambient atmosphericpressure. Such a drop in pressure may cause the contents within thecontainer 100 to foam and potentially force the contents between theplug seal 168 and the first edge 152, and out of the container 100. Inthe embodiment illustrated in FIG. 3, however, as the plug seal 168 iswithdrawn from the CSD finish 140, the seal disengages from the twonotches 196 before withdrawing from the rest of the first edge 152,thereby slowing down the pressure release occurring within the container100. As will be appreciated, more slowly releasing pressure within thecontainer 100 substantially reduces the likelihood that the contentswill foam and push out of the container. Those skilled in the art willfurther appreciate that slowly reducing internal pressure within thecontainer 100 permits the use of additional carbon-dioxide contentwithin the container, thereby increasing the longevity of theflavor-profile of the contents.

As mentioned above, the cross-sectional shape of the notches 196 neednot be limited to those illustrated in FIG. 2, but rather various othercross-sectional shapes may be utilized for the notches 196. Further, thenumber and positions of the notches 196 on the first edge 152 need notbe limited to the number and positions illustrated in FIG. 2. Thus, insome embodiments, the first edge 152 may comprise more than two notches196. In other embodiments, the first edge 152 may comprise one suitablyconfigured notch 196. In some embodiments, multiple notches 196 may beuniformly distributed around the circumference of the first edge 152. Insome embodiments, multiple notches 196 may be positioned around thecircumference of the first edge 152 with a non-uniform spacing betweenthe notches. Accordingly, FIG. 5 is a table 200 illustrating resultsobserved during experimental testing performed in connection withapplications of various embodiments of the present disclosure.

In some embodiments, suitably sized and shaped holes may be implementedin lieu of the notches 196. It is envisioned that the holes may bepositioned just below the first edge 152 so as to be covered over by theplug seal 168 when the container cap 164 is tightly engaged with the CSDfinish 140. It is further envisioned that the shape of the holes may besuitably designed to issue an audible sound when the container cap 164is removed from the CSD finish 140 and pressure is relieved from theinterior of the container 100. In some embodiments, the shape of eachhole may be fashioned to resemble a flute, or a reed, which vibrateswhen the container cap 164 is removed from the container 100, therebyamplifying the audible sound as pressure within the container isrelieved.

FIGS. 6A through 6C illustrate perspective views of an exemplaryembodiment of a container cap 204 and a liner seal 208 coupled with aCSD finish 212, in accordance with the present disclosure. As best shownin an exploded view illustrated in FIG. 6C, the liner seal 208 isdisposed between the container cap 204 and the CSD finish 212. When thecontainer cap 204 is tightly engaged with the CSD finish 212, the linerseal 208 operates similarly to a gasket that prevents pressurizedcontents from leaking out of the container 100. The CSD finish 212 issubstantially similar to the CSD finish 140, with the exception that theCSD finish 212 may comprise one or more threads 172 that are configuredspecifically to engage with the threads within the container cap 204.

As shown in FIG. 6B, the liner seal 208 may be affixed to the first edge152 by way of any of various suitable adhesives, or the liner seal 208may be of the variety that is adhered to an inside of the container cap204. As will be recognized, the liner seal 208 preferably has athickness suitable to fill and seal the notches 196 so as to preventpressurized contents from leaking out of the container 100. Thus, whenthe container cap 204 is loosened with respect to the CSD finish 212,the liner seal 208 loosens within the notches 196 before loosening fromthe first edge 152. As disclosed herein, venting pressurized gasesthrough the notches 196 before unsealing the entirety of the first edge152 substantially reduces the tendency for carbonated contents to foamand push out of the container 100. Coupling the liner seal 208 with theCSD finish 212 permits using a relatively greater carbon-dioxide contentwithin the container so as to increase the longevity of theflavor-profile of the contents.

While the invention has been described in turns of particular variationsand illustrative figures, those of ordinary skill in the art willrecognize that the invention is not limited to the variations or figuresdescribed. In addition, where methods and steps described above indicatecertain events occurring in certain order, those of ordinary skill inthe art will recognize that the ordering of certain steps may bemodified and that such modifications are in accordance with thevariations of the invention. Additionally, certain of the steps may beperformed concurrently in a parallel process when possible, as well asperformed sequentially as described above. To the extent there arevariations of the invention, which are within the spirit of thedisclosure or equivalent to the inventions found in the claims, it isthe intent that this patent will cover those variations as well.Therefore, the present disclosure is to be understood as not limited bythe specific embodiments described herein, but only by scope of theappended claims.

What is claimed is:
 1. A finish configured to define an opening to aninterior of a container and to substantially reduce foaming of contentswhen the container is opened, the finish comprising: a cylindrical bodycomprising a peripheral portion with a first edge and a second edgedisposed at opposite ends, the first edge defining an opening andconfigured to receive a container cap, the second edge configured toreceive a neck of the container, wherein the opening is in fluidcommunication with the interior; one or more threads on an exterior ofthe peripheral portion, the threads configured to rotatably engage withone or more threads of the container cap; and at least one notchdisposed on the first edge and comprising a cross-sectional shapesuitably formed to substantially reduce foaming of the contents.
 2. Thefinish of claim 1, wherein the first edge is configured to couple with aseal of the container cap, such that pressurized contents are maintainedwithin the interior.
 3. The finish of claim 2, wherein the sealcomprises a plug seal disposed within an interior of the container capand configured to tightly engage the first edge so as to maintain thepressurized contents within the interior.
 4. The finish of claim 2,wherein the seal comprises a liner seal disposed between the containercap and the first edge so as maintain the pressurized contents withinthe interior.
 5. The finish of claim 1, wherein the at least one notchcomprises two notches disposed on opposite sides of the finish.
 6. Thefinish of claim 1, wherein the cross-sectional shape is any one of ahalf-circle, a square, and a triangle.
 7. The finish of claim 1, whereinthe cross-sectional shape is configured to produce an audible sound whenpressurized gases exit through the at least one notch during looseningof the container cap.
 8. A container configured to substantially reducefoaming of contents when the container is opened, the containercomprising: a base extending upward to a sidewall of the container; ashoulder connected between the sidewall and a bell, a diameter of thebell decreasing as the bell extends upward to a neck of the container; afinish connected to the neck and configured to receive a container cap,the finish defining an opening to an interior of the container; and atleast one notch disposed at the top of the finish and configured tosubstantially reduce foaming of contents during opening of thecontainer.
 9. The container of claim 8, wherein the top of the finish isfurther configured to receive a seal of the container cap.
 10. Thecontainer of claim 9, wherein the seal comprises a plug seal disposedwithin an interior of the container cap and configured to tightly engagethe finish so as to maintain the pressurized contents within theinterior.
 11. The container of claim 9, wherein the seal comprises aliner seal disposed between the container cap and the finish so asmaintain the pressurized contents within the interior.
 12. The containerof claim 8, wherein the top of the finish comprises two notches disposedon opposite sides of the opening to the interior of the container. 13.The container of claim 8, wherein the at least one notch comprises across-sectional shape suitably formed to substantially reduce foaming ofcontents.
 14. The container of claim 13, wherein the cross-sectionalshape is any one of a half-circle, a square, and a triangle.
 15. Thecontainer of claim 13, wherein the cross-sectional shape is configuredso as to produce an audible sound when the container cap is twisted. 16.A method for a container to substantially reduce foaming of contentswhen the container is opened, the method comprising: extending a baseupward to a sidewall of the container; connecting a shoulder between thesidewall and a bell; extending the bell from the shoulder to a neck ofthe container, such that a diameter of the bell decreases as the bellextends to the neck; connecting a finish to the neck, such that thefinish defines an opening to an interior of the container; configuringthe finish to receive a container cap; and forming at least one notch atthe top of the finish so as to substantially reduce foaming of contentsduring opening of the container.
 17. The method of claim 16, whereinconfiguring the finish further comprises forming a cylindrical bodycomprising a peripheral portion disposed between a first end and asecond end, the first end configured to receive the container cap andthe second end configured to couple with the neck.
 18. The method ofclaim 17, wherein configuring the finish further comprises forming oneor more threads on an exterior of the peripheral portion, the threadsconfigured to rotatably engage with one or more threads of the containercap.
 19. The method of claim 16, wherein forming the at least one notchcomprises configuring a cross-sectional shape of the at least one notchcomprising any one of a square, a half-circle, and a triangle.
 20. Themethod of claim 16, wherein forming the at least one notch comprisesconfiguring a cross-sectional shape of the at least one notch to producean audible sound when pressurized gases exit through the at least onenotch during loosening of the container cap.